fix(create-pr): skip auto-complete API call on draft PRs (#194)

When both draft: true and auto-complete: true are configured, skip the
autoCompleteSetBy API call since ADO silently ignores auto-complete on
draft PRs. The existing warning is preserved so operators are aware of
the conflict.

This prevents a pointless API call and avoids silent behavior loss when
draft: true became the default in PR #155.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: jamesadevine

src/safeoutputs/create_pr.rs

@@ -1391,8 +1391,9 @@ impl Executor for CreatePrResult {
                 }
             });
 
-            // Only set autoCompleteSetBy if auto_complete is enabled
-            if config.auto_complete {
+            // Only set autoCompleteSetBy if auto_complete is enabled and PR is not a draft
+            // (ADO silently ignores auto-complete on draft PRs, so skip the API call)
+            if config.auto_complete && !config.draft {
                 update_body["autoCompleteSetBy"] = serde_json::json!({
                     "id": pr_data["createdBy"]["id"]
                 });
@@ -2253,4 +2254,23 @@ new file mode 100755
         assert!(!paths.contains(&"/dev/null".to_string()));
     }
 
+    #[test]
+    fn test_default_config_draft_true_autocomplete_false() {
+        let config = CreatePrConfig::default();
+        assert!(config.draft, "draft should default to true");
+        assert!(!config.auto_complete, "auto_complete should default to false");
+    }
+
+    #[test]
+    fn test_config_deserialize_draft_false_autocomplete_true() {
+        let yaml = r#"
+            target-branch: main
+            draft: false
+            auto-complete: true
+        "#;
+        let config: CreatePrConfig = serde_yaml::from_str(yaml).unwrap();
+        assert!(!config.draft);
+        assert!(config.auto_complete);
+    }
+
 }